Configuration

Set Configuration DIP Switches

Using a small tool, set the Configuration DIP Switches (located on the front panel, see diagram) to optimize UPS System operation, depend- ing on your application. TMU612 models include one set of four DIP Switches. All other models include an additional set of four DIP switches to configure additional operational functions. Refer to the appropriate section to review the instructions for your specific model.

Group B Dip Switches (Not on 612 Models)

INPUT C/B

A4	A3	A2	A1
	OUTPUT C/B 12A

Group A Dip Switches (All Models)

Group A DIP Switches (All Models)

Using a small tool, configure your UPS System by setting the four Group A DIP Switches (located on the front panel of your unit; see dia- gram) as follows:

A1 Select Battery Type—REQUIRED

(All models)

CAUTION: The Battery Type DIP Switch setting must match the type of batteries you connect, or your batteries may be degraded or damaged over an extended period of time. See “Battery Selection,” p. 9 for more information.

A4 A3 A2 A1

A2 Select High AC Input Voltage Point for Switching to Battery—OPTIONAL* (All models except TMU1250)

A4 A3 A2 A1

Battery Type	Switch Position
Gel Cell (Sealed) Battery	Up
Wet Cell (Vented) Battery	Down (factory setting)

Voltage

Switch Position

145V

135V

Down (factory setting)

TMU1250 Only

Select Charger Enable/Inhibit

Inhibit

Enable

Status

Switch Position

Inhinit

Enable

Down (factory setting)

All Models Except TMU612

A4 A3 Select Low AC Input Voltage Point for Switching to Battery—

OPTIONAL*

	Switch
Voltage	Position
105V	#A4 Up & #A3 Up
95V	#A4 Up & #A3 Down
85V	#A4 Down & #A3 Up
75V	#A4 Down & #A3 Down
	(factory setting)

A4 A3 A2 A1

TMU612 Only

A4 & A3 Settings

A3 Select Low AC Input Point for Switching to Battery—OPTIONAL

Voltage	Switch Position
105V	Up
95V	Down (factory setting)

A4 Set Battery Charging Amps Type—OPTIONAL

Check specifications on for your unit’s high- and low-charging amp options. By setting on high charging, your batteries will charge at maximum speed. When setting on low charging, you lengthen the life of your batteries (especially smaller ones).

Battery Charger	Switch Position
High Charge Amp	Up
Low Charge Amp	Down (factory setting)*

A4 A3 A2 A1

A4 A3 A2 A1 High Charge Amp

Low Charge Amp

A4 A3 A2 A1

*Most of your connected equipment will perform adequately when your UPS System’s High AC Input Voltage Point (DIP Switch #2 of Group A) is set to 135V and its Low AC Voltage Input Point (DIP Switches #3 and #4 of Group A or DIP Switch #3 for 612 models) are set to 95V. However, if the unit frequently switches to battery power due to momentary high/low line voltage swings that would have little effect on equipment operation, you may wish to adjust these settings. By increasing the High AC Voltage Point and/or decreasing the Low AC Voltage Point, you will reduce the number of times your unit switches to battery due to voltage swings.